Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorQuagio Grassiotto, Irani
dc.creatorCarvalho, E. D.
dc.date2014-05-27T11:19:57Z
dc.date2016-10-25T18:16:35Z
dc.date2014-05-27T11:19:57Z
dc.date2016-10-25T18:16:35Z
dc.date2000-10-01
dc.date.accessioned2017-04-06T00:57:45Z
dc.date.available2017-04-06T00:57:45Z
dc.identifierJournal of Submicroscopic Cytology and Pathology, v. 32, n. 4, p. 629-633, 2000.
dc.identifier1122-9497
dc.identifierhttp://hdl.handle.net/11449/66265
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66265
dc.identifier2-s2.0-0034304689
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/11297382
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/887869
dc.descriptionThe spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of mitochondria and large amount of vesicles in the cytoplasm. During the differentiation process in the nucleus, chromatin compacts in a progressive and homogeneous way, and the flagellum is formed. In the cytoplasm the vesicles, that have double membranes, aggregate and fuse on the plasma membrane. The spermatozoa of 5. lima have no acrosome and show spherical nucleus with homogeneous and highly compacted chromatin, intermediary piece with mitochondria and double wall vesicles contiguous to the plasma membrane, as well as a flagellum formed by a basic axoneme (9 + 2).
dc.languageeng
dc.relationJournal of Submicroscopic Cytology and Pathology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectS. lima
dc.subjectSpermiogenesis
dc.subjectTeleostei
dc.subjectUltrastructure
dc.subjectanimal
dc.subjectcatfish
dc.subjectcell nucleus
dc.subjectcytoplasm
dc.subjectelectron microscopy
dc.subjecthistology
dc.subjectmale
dc.subjectmitochondrion
dc.subjectspermatid
dc.subjectspermatogenesis
dc.subjectspermatozoon
dc.subjectspermatozoon tail
dc.subjectultrastructure
dc.subjectAnimals
dc.subjectCatfishes
dc.subjectCell Nucleus
dc.subjectCytoplasm
dc.subjectMale
dc.subjectMicroscopy, Electron
dc.subjectMitochondria
dc.subjectSperm Head
dc.subjectSperm Tail
dc.subjectSpermatids
dc.subjectSpermatogenesis
dc.subjectSpermatozoa
dc.titleUltrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis
dc.typeOtro


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